Swift 字典数组

Question

我正在使用 Swift 1.2，并尝试获取来自 Swift 早期版本的声明的正确语法:

 var dataSource: Dictionary<String, String> [][] = [[],[]]

我得到的错误是:

Array types are now written with the brackets around the element type.

我只是不知道如何纠正它。

Answer 1

从那时起语法发生了变化。正如您的错误所示:

Array types are now written with the brackets around the element type.

所以代替 Dictionary<String, String>[][]将类型括在括号中，例如 [[Dictionary<String, String>]]或使用简写语法:[[[String: String]]] :

var dataSource: [[[String: String]]] = [[],[]]